Container



March 2, 1937. J.. M. YOUNG CONTAINER Filed Jan. 23, 1933 ATTORNEPatented 1 937 7 UNITED s1- avian I P ENT OFFICE comma ohm-Mt YoungBrooklym-,N. Y., assignor to American Can Company, New York, N. L, a

corporation of New Jersey 'A jucaubn January 23, 1933, Serial a 653,035

' aomma iol. zzo -ssy y A principal object of the invention is theprovision of an end-closure adapted to hermeticale fly seal a container,adapted tobe readily applied to acontainer by a tight-fitting drive fitand adapted to permit the escape of air from the inm terior of thecontainer when the air displaced application to by the closure duringits rapid the container.

Another important object of the invention is the provisionof an endclosure having a depend- 'ing container engaging drive fit flange,generally like structure showniand described in my co.-

pending application, Serial No; 377,145, filed July 18, 1929, (sinceissued into'Patfint NOL;

1,920,288) and provided with vertically arranged,

29 spaced and channeled ridges, constituting air vents, to permit theescape 'of displaced air.

within thecontainer and also' providedwith a weakening or score line to"permit removal of the flange by tearing, thereby releasing the tight 72g fitting drive fit closure to open the container and to also provide areclosure. l

, Still another object of the invention, is the provision of an improvedend closure which has a a scored depending flange and which utilizes the3g inherent elasticity of the metal of the flange to produce a verytight drive fit (superior to a mere friction fit) connection between itand 'a portion of a container body which has a prede-- termined size,and which connection would per 35 mane'ntly resist disengagement exceptby sev- 'f erance oi the flange along a score line by means of asuitable key. i r 7 Numerous other objects and advantages of theinvention will be apparent as it is better'under- 4B stood from' thefollowing. description, which; taken in connection with the accompanyingdrawing, discloses a preferred embodiment thereof,

I Referring to the drawing; n 45 Figure 1 is a perspective view' of onekind of container to which the present invention is applicable; V

Fig, 2 is a cross-sectional view showing in fragmentary fashion the canbody and closure.

at the beginning of the assembly operation:

Fig. 3 is a slmilarview, showing a later stage of the assembly;

Fig. 4 is a view showing: completion or he assembly; and

55' Fig. 5 is a fragmentary cross sectionalf vicw ,trated inthecopending application above' re fen'ed x showing the container andclosure after removal tainer without going tothe trouble and expense ofpositive vacuumization. It hasbeen found that in applying the drive fitclosure more or less rapidly by means of automatic pressure 7 mechanism,air which fills the head space com- 10 monly left in the container abovethe product and air carried down by the cup shaped end closure .istrapped, and compressed within the container, with the result thatoxidation within the sealed container is considerably aided. It 5 was tosubstantially prevent this pressure and oxidation by providing meansfor' the escape of substantially all the air that theconstructionillustrated herein was conceived'and devised.

To illustrate-"a preferred embodiment oi the 0 invention there is shownin the drawing a sheet metal container comprising a cylindrical body I Ihaving a side seam i2, a bottom closure joined to the body in adoubleseam l3, and atop closure "1..

The upper extremity of the body H is bent in- 'wardly, downwardly andoutwardly to provide a rounded, annular top edge or curl l5.

Tne top closure It comprises a sunken panel it, a vertical wall l l, arounded shoulder or recess 7,

it which merges :into a depending imperforate flange or skirt it, havingan integral tongue e tension 21].

At the outer base of the shoulder or recess E8 the skirt or dependingflange i9 is scored interiorly and annularly to provide a line of sev- 5by means of a slotted key 2% removably-secured 4 l to the panel it inany suitable manner, as by spot welding. The usual' slot of the key isadapted to. engage the tongue 21, and thekey constitutes means forremoval of the tearing strip and re- 7 lease of the cover by, the ,wellknown rolling of 5 the strip upon the key. v i To obtain the bestsealing results from the improved closure itis desirable to have theannular sealin-g'area of the body I I, adjacent its top, ofsubstantially'accurate predetermined diameter. This isaccomplished by adiesizing of the'container andiaccurately dimensioning the coverflangei9, as fully and clearly described and illus- The forcing or drivinghome of the cover over a the'ordinary' slip or friction cover and acontainer body. This is evidenced by the fact that after the cover I 4is thus driven home over thebody II, the two cannotbe' separatedexcept-by fracturing or tearing the expanded cover flange.

[9. This is preferably done by rolling up the tearing strip, defined bythe score line 22 and'the flange edge 23, upon the key 24 in the usualand "'well known manner.

The closure It may be made hermetic by placing a gasket or liningcompound 25in the closure recess It, as clearly illustrated in Figs.2-5.- 25 When the closure I4 is forced into sealing engagement with thecan body, this lining compound or gasket 25 is compressed between thetop surface of the curl ii of the body and the inner surface of theclosure recessor channel l8, and

the closure is thus made both liquid and air tight. After the containerbody II has been filled construction and arrangement of the partswithoutdeparting from the spirit and scopeof the in-. vention or sacrificingall of. its material advantages', the form hereinbefore described beingmerely a preferredembodiment thereof. 6

I claim:

- l. The combination in a container, a container body-having a sealingarea of predetermined diameter, a cover for said container having adepending flange of predetermined smaller diam 10 eter than saidsea-ling area, and having a portion providing a tearing strip, saidflange being adapted to be tensioned within the limits of its elas-'ticity about said sealing area to form a permanent seal with thecontainer, said flange also being 15 bent to form passages for theescape of air during its application to the container. I 2., Thecoinbination'in a container, of a containerv body having a sealing areaof predetermined diameter and a cover having a drive flt' flange ofsmaller diameter than said sealing area and adapted to be stretchedwithin its elastic mined diameter and a'cover' having a drive flt .witha product 26 to a level extending to within a short distance below thecurl l5, so as to leave the usual headspace 21, the closure M is broughtin alignment with and is applied to the containe'r body, asdescribed seeFigs; 2-4). This cover applying operation is accomplishedv by pressingthe cover down over the open-end of the can body in a metal to metaldrive flt which is permanent 40 until the tearing strip is removed torelease it; asshown in Fig. 5. .As the cover It telescopes with thetopfjof the container, the head-space initiallly provided is reduceduntilthe cover is fully seated. Inorder be placed under compression asthe cover-is driven, home, means are provided for venting this spaceuntil or substantially until the end of the telescoping movement. Thesemeans comprise 'one' v or more hollow ridges or ribs 28 vertically ar-.45 that the air above the contained product may not ranged in spacedrelationship about the periphery" *Each hollow ridge or rib extendsperpendicularly from just beneath th'e score line 22 to the 'edgeji ofthe flange I 9, is pressed out 'from the metal of the flangeprei'erablyby the same die which produces thecover, and? forms an air vent or airescape channel 29 permittingair to escape from the time'the cover isinitially engaging the 80 top of the body I I, as shown in Fig.2,through the partially applied stage'as" shown in Fig.3, until .iustbefore the cover is fully driven home into the container.

hermetic sealing engagement with body. as shown in Fig. ;4.'

When the metal to metal driv fit se'aibetainer body is released bywinding the tearing a. ween the strtched cover flange" and the con-"-str'ip upon the lgey 2.4; there is left,. as shown-in lyig. 5, a shortflanged reclosure which serves 70 the purpose of a cover until thecontainer has been emptied of its entire contents. '1

.. It is thought that the invention and many '01 its attendantadvantages will be understood from the foregoingdescription, audit willbe apparent 75 that various changes may be made in the form,

flange of smaller diameter than said sealing area and adapted'to bestretched within its elastic limits over s'aidcontainer sealing areawhen applied to said container, said flange having up-' wardly anddownwardly extending air'pas'sages 35 arranged about'its periphery topermitescap'e of 1-,

air during the/application of said cover. 1

4. The combination in a container, of a container bo dy having a sealingarea of predetermined diameter and a cover having wall of smallerdiameter than said s aling area and adapted to be hermetically sealedwith an, end of said container when applied to the latter, and anoutwardly xtruded air passage constitut ing an )integral partof saidwall to permit escape. of air during-the forming of the drive fit anduntil sealing of the cover to'the container. s

.- "5. 'I'hecombination in a container, of a con-' ,tainerbody having asealing area of predetenmined diameter and a" cover having a depending 5member having a sealing area of predetermined diameterand a covermemberhaving as depending wall of smaller diameter than said sealingarea and adapted to be brought into sealing engagement with said bodymember. one of. said members being formed with an. elongated air passageof an extent substantially equal to the'vertical dimension of the areaof said body member which is engaged by said cover wall whereby topermit I 1 escape of air from .the container'until the sealing operationbetween the cover and bodymember is completed; 7

" 7. The combination in a container, of a'container body having a'sealing area of predetermined diameter and a cover having a drive fltwall of smaller diameter than said sealing area and depending 40'adapted to be brought into sealing engagement with the container wallwhen applied thereto, and an air passage between said walls to permitescape or air during the sealing of the cover to the containe'r. j

.8. The combination in a container, of a contamer body having a sealingarea of predeter mined diameterand a cover having-a depending flange ofsmaller diameter than said'sealing area and adapted to be hermeticallysealed with an endof said container in a drive fit, a sealing gaskewithin said cover and an outwardly ex- .trude air passage constitutingan integral part c of said flange and disposed beneath said gasket topermit escape of air until said gasket comes into hermetic sealingengagement with said container.

JOHN M. YOUNG.

